Staging bracket



Sept. 15, 1964 R. w HUTcHlsN STAGING BRACKET Filed June 6, 1963 United States Patent() M3557 STAGING BRACKET Ralph W. Hutchison, 1425 Madison Road, Beloit, Wis. Filed June 6, 1h63, Ser. No. 235,956 1l Claims. (Cl. 24S-2.47)

This invention relates to a new .and improved staging bracket designed for use in building construction work, and more particularly in steel buildings, where it is desired to apply a layer of spun-glass insulation with aluminum foil covering the inside thereof, the application of which to the inside of the wall has otherwise presented quite a problem in scaifolding, using old methods. With the staging bracket of my invention designed to be anchored inside the wall in a new way, the insulation work is greatly expedited and there is a considerable saving in labor cost and the workmen are moreover assured of steadier and far safer support, so that the danger of injuries or even casualties is reduced to a minimum.

The invention is illustrated in the accompanying drawing, in which FIG. 1 is a perspective view of a stage bracket made in accordance with my invention;

FIG. 2 is a side View showing how the bracket, mounted on a wooden upright disposed crosswise relative to two or more horizontally extending steel girders forming part of a building skeleton framework is designed to hook onto the lower ange of the S-section girder and in addition, as a safety precaution against accidental unhooking fashioned by means of a chain passed around the upright well below the fulcrum point of the bracket relative to the upright, and

FG. 3 is a view like FIG. 2, but on a smaller scale in order to show the next girder below and how the upright carrying the staging bracket has abutment against it to maintain the upright in parallel relationship to the wall of the building.

Referring to the drawing, the staging bracket of my invention is designated generally by the reference numeral 5, and, although only one such bracket is herein shown, it will be understood that two or more of these brackets are used together' to support scaiold planks 6 in a substantially horizontal plane in abutment with two or more laterally spaced two-by-four studding pieces 7 disposed substantially vertically in substantially parallel relationship to one another in abutment with neighboring steel girders or pearlings, indicated at 8 and 9, forming parts of a building skeleton framework extending around the inside of the outer steel Wall 10. While these brackets were designed especially to meet the needs where la layer of spun glass insulation indicated at 11 is to be applied to the inside of the steel wall 1t), with an inside covering of aluminum foil as indicated at 12 through which bolts 13 must -be extended, perforating the sheet 12 and entered in holes in the girders 8 and 9 for application of nuts 14 to their inner ends, one man working on the bolts 13 from the outside of the building while another standing on the scaffold 6 inside the building applies the nuts 14, it should be clear that these staging brackets are by no means limited to such use.

The griders 8 and 9 have an upwardly projecting outer ange 15 through which the bolts 13 extend, and a downwardly extending ange 16 on the inner side having an outwardly bent lower edge portion 17 onto which horizontal lugs 18 on the upper end'of the upwardly and rearwardly angled forked extension 19 that straddles the upright 7 are arranged to hook over to support the bracket against downward displacement. The forked extension 19 is provided by a generally U-shaped straddle member 20 comprising a vertical web 21 that has abutment with the outer edge 22 of the upright 7 and is welded along 3,148,357 Patented Sept. 15 1964 ICC the vertical lines 23 to the rear ends of the downwardlyv extending flanges 24 of the channel shaped body member 25 of the bracket 5. The web portion 26 of body 25 is substantially horizontally ydisposed and is adapted to support the scaffold plank 6 thereon, and the outer end of the web 26 is bent upwardly at an acute angle to the vertical, as indicated at 27, to have wedging engagement with the outer edge `of the scaffold plank 6 and hold it in tight abutment with the outer edge 22 of the upright 7. Additional strength is built into the bracket 5 by welding angle iron strips Z8 onto the opposite sides of the bracket crosswise of the welds Z3, welds being indicated at 29, Btl, 31, and 32 in PEG. 1. The horizontal flanges 33 on the two reinforcing members 28 are disposed with their top faces hush with the top of the web 26. Additional strength and rigidity is also built into the bracket by providing vertical reinforcing flanges 34- on the inner ends of the side walls of the member 21, the lugs 1S being provided as integral upper end portions of these flanges, and also by providing outwardly bent flanges 35 on the upper edges of the side walls of the member Z1 and welding the lower ends of these flanges 3S to the ilanges 33 of members 23, as indicated at 36, and welding the upper ends of these iianges 35 to the upper ends of flanges 34 below the lugs l, as indicated at 37.

When the staging bracket 5 is being hooked at 18 onto ange 17 on the girder 8 the bracket may be teetered or fulcrumed at 38 relative to the upright 7 and, to prevent accidental unhooking of the bracket, a chain 39 is priovided on the bracket extending around the upright 7 below the fulcrum point to restrict the amount of possible teetering of the bracket relative to the upright Within a safe limit. The chain 39 is secured at one end to the bracket 5 by means of a rivet stud di), the other end of the chain being engageable in a vertical slot 41 provided in the leg of a T-shaped member 42 that is welded t0 the other side of the bracket opposite the stud 4G.

In operation, two or more staging brackets 5 per scaffold plank or planks 6 are mounted as shown on the wall of the building using neighboring girders or pearlings S and 9 for abutment by the upright-s 7, and the brackets are left in this position until the insulation has been applied to the inner side of the outer wall 10 as far up from the upper girder 8 as the workmen can reach, whereupon the chains 39 are disconnected to enable unhooking of the brackets 5 from girder S and resetting of the uprights 7 and brackets 5 at the next level higher, which may mean connection with a girder two or three removed from girder 8 and above it. After all of the insulation work has been done the girders are used for fastening of an inner wall in spaced relation to the outer wall, leaving dead air spaces between the walls for additional insulation effect.

v lt is believed the foregoing description conveys a good understanding of the objects and advantages of my invention. The appended claims have been drawn to cover all legitimate modiiications and adaptations.

I claim:

1. A scaitold construction comprising, in combination, a vertical support having a plurality of horizontal crossmembers projecting from one face of said support in vertically spaced relation, one of which is provided with a downwardly projecting flange the lower edge portion of which is substantially horizontal and extends toward the support to define a ledge, an elongated upright support for a scaffold bracket long enough to straddle at least two neighboring cross-members, and a horizontal scaffold bracket having a forked rear end portion in which said upright support is received, said forked rear end portion including an upwardly and rearwardly exf tending portion on the upper portion of which a substantially horizontal lug is provided for hook-over engagement on the aforementioned ledge.

2. A scaffold construction comprising, in combination, a vertical support having a plurality of horizontal crossmembers projecting from one face of said support in vertically spaced relation, one of which is provided with a downwardly projecting flange the lower edge portion of which is substantially horizontal and extends toward the support to define a ledge, an elongated upright support for a scaffold bracket long enough to straddle at least two neighboring cross-members, and a horizontal scaffold bracket having a forked rear end portion in which said upright support is received, said forked rear end portion including on both sides of the fork upwardly and rearwardly extending portions on the upper portion of each of which a substantially horizontal lug is provided for hook-over engagement on the aforementioned ledge.

3. A scaffold construction comprising, in combination, a vertical support having a plurality of horizontal crossmembers projecting from one face of said support in vertically spaced relation, one of which is provided with a downwardly projecting flange the lower edge portion of which is substantially horizontal and extends toward the support to define a ledge, an elongated upright support for a scaffold bracket long enough to straddle at least two neighboring cross-members, and a horizontal scaffold bracket having a forked rear end portion in which said upright support is received, said forked rear end portion including a fulcrum edge transversely thereof between portions extending above and below said fulcrum edge, the upwardly extending portion extending also rearwardly and having on the upper portion a substantially horizontal lug for hook-over engagement on the aforementioned ledge, and means on the downwardly extending portion for connection with the upright support to limit upward tilting of said scaffold bracket relative to said upright supp'ort.

4. A scaffold construction comprising, in combination, a vertical support having a plurality of horizontal crossmembers projecting from one face of said support in vertically spaced relation, one of which is provided with a downwardly projecting ilange the lower edge portion of which is substantially horizontal and extends toward the support to define a ledge, an elongated upright support for a scaffold bracket long enough to straddle at least two neighboring cross-members, and a horizontal scaffold bracket having a forked rear end portion in which said upright support is received, said forked rear end portion including a fulcrum edge transversely thereof between portions extending above and below said fulcrurn edge on both sides of the fork, each upwardly extending portion extending also rearwardly and having thereon a substantially horizontal lug for hook-over engagement on the aforementioned ledge, and an elongated flexible element for wrap-around connection with said upright support, said element being connected at one end to one of said downwardly extending portions and being detachably connectible at the other end with the other of said downwardly extending portions.

5. A bracket of the character described comprising an elongated horizontal channel body having front and rear ends and a web dening a flat top surface the length thereof and parallel downwardly projecting longitudinal flanges on opposite sides of said web, said body having on the rear end a generally U-shaped rearward extension adapted to receive an upright supporting member, said extension comprising a vertical cross-wall rigid with the rear end of said channel body and parallel side walls rigid with the longitudinal flanges and extending upwardly and rearwardly relative to the cross-wall and having forwardly extending bracket supporting projections on their upper ends spaced rearwardly relative to the rear end of said web.

6. A bracket as set forth in claim 5 including means on the rear end of said bracket spaced below the web of said channel body to secure the bracket to an upright bracket supporting member entered in the U-shaped extension.

7. A bracket as set forth in claim 5 including a flexible elongated element long enough to extend from the bracket and wrap around an upright bracket supporting member entered in the U-shaped extension to secure the bracket thereto, the ends of said element being attached to said bracket.

8. A bracket as set forth in claim 5 wherein said U-shaped rearward extension comprises a separate U-shaped member secured by means of its cross-wall to the rear end of said channel body with its side walls ilush with the longitudinal flanges of the channel body of said bracket, the structure including elongated reinforcing members secured on opposite sides of and extending from the rear end of the bracket rearwardly alongside and secured to the opposite sides of the U-shaped member.

9. A bracket as set forth in claim 5 wherein said U-shaped rearward extension comprises a separate U-shaped member secured by means of its cross-wall to the rear end of said channel body with its side walls flush with the longitudinal flanges of the channel body of said bracket, the structure including elongated reinforcing members secured on opposite sides of and extending from the rear end of the bracket rearwardly alongside and secured to the opposite sides of the U-shaped member, said reinforcing members being horizontally disposed flush with the top of said bracket.

10. A bracket of the character described comprising an elongated horizontal channel body having front and rear ends and a web defining a ilat top surface the length thereof and parallel downwardly projecting longitudinal flanges on opposite sides of said web, said body having on the rear end a generally U-shaped rearward extension adapted to receive an upright supporting member, said extension comprising a vertical cross-wall rigid with the rear end of said channel body and parallel side walls rigid with the longitudinal flanges and extending upwardly and rearwardly relative to the cross-wall and having forwardly extending bracket supporting projections on their upper ends spaced rearwardly relative to the rear end of said web, said U-shaped extension having vertical outwardly bent reinforcing flanges on the rear ends of the side walls thereof, the forwardly extending bracket supporting projections being integral extensions on the upper ends of said llanges.

1l. A bracket as set forth in claim 5 wherein said U-shaped rearward extension comprises a separate U-shaped member secured by means of its cross-wall to the rear end of said channel body with its side walls llush with the longitudinal flanges of the channel body of said bracket, the structure including elongated reinforcing members secured on opposite sides of and extending from the rear end of the bracket rearwardly alongside and secured to the opposite sides of the U-shaped member, said reinforcing members being horizontally disposed ush with the top of said bracket, said U-shaped member having vertical outwardly bent reinforcing llanges on the rear ends of the side walls thereof, the forwardly extending bracket supporting projections being integral members on the upper ends of said flanges, there being other outwardly bent reinforcing flanges on the front ends of the side walls, the upper ends of which are secured to the upper ends of the rear flanges and their integral forward extensions, the lower ends of said front flanges being secured to said reinforcing members intermediate the ends thereof.

References Cited in the tile of this patent UNITED STATES PATENTS 2,308,142 Alloway lan. l2, 1943 2,612,413 Polak Sept. 30, 1952 3,041,033 Schwartz June 26, 1962 

1. A SCAFFOLD CONSTRUCTION COMPRISING, IN COMBINATION, A VERTICAL SUPPORT HAIVNG A PLURALITY OF HORIZONTAL CROSSMEMBERS PROJECTING FROM ONE FACE OF SAID SUPPORT IN VERTICALLY SPACED RELATION, ONE OF WHICH IS PROVIDED WITH A DOWNWARDLY PROJECTING FLANGE THE LOWER EDGE PORTION OF WHICH IS SUBSTANTIALLY HORIZONTAL AND EXTENDS TOWARD THE SUPPORT TO DEFINE A LEDGE, AN ELONGATED UPRIGHT SUPPORT FOR A SCAFFOLD BRACKET LONG ENOUGH TO STRADDLE AT LEAST TWO NEIGHBORING CROSS-MEMBERS, AND A HORIZONTAL SCAFFOLD BRACKET HAVING A FORKED REAR END PORTION IN WHICH SAID UPRIGHT SUPPORT IS RECEIVED, SAID FORKED REAR END PORTION INCLUDING AN UPWARDLY AND REARWARDLY EXTENDING PORTION ON THE UPPER PORTION OF WHICH A SUBSTANTIALLY HORIZONTAL LUG IS PROVIDED FOR HOOK-OVER ENGAGEMENT ON THE AFOREMENTIONED LEDGE. 